公开(公告)号：US20120250790A1

公开(公告)日：2012-10-04

申请号：US13078363

申请日：2011-04-01

申请人： Zigang Yang ,  Lars Jorgensen ,  Lei Ding

发明人： Zigang Yang ,  Lars Jorgensen ,  Lei Ding

IPC分类号： H04L25/49

CPC分类号： H04L27/368 ,  H03C2200/0016 ,  H03F1/3247 ,  H03F1/3294 ,  H03F3/189 ,  H03F3/24 ,  H03F2200/336 ,  H04L27/364

摘要： In conventional radio frequency (RF) systems, transmitters will usually convert baseband signals to RF so as to be transmitted. As part of the conversion process, the transmitters will perform digital preditortion (DPD), which uses feedback from a power amplifier. However, there are usually mismatches between the in-phase (I) and quadrature (Q) paths within with feedback loop. Traditional IQ correction filters were ineffective at providing adequate compensation for these mismatches, but here a filter is provided that provides adequate out-of-band compensation by use of frequency selectivity.

摘要翻译： 在常规射频（RF）系统中，发射机通常将基带信号转换成RF以便被发送。 作为转换过程的一部分，发射机将执行使用功率放大器反馈的数字预处理（DPD）。 然而，通过反馈回路中的同相（I）和正交（Q）路径之间通常存在不匹配。 传统的IQ校正滤波器在为这些不匹配提供足够的补偿方面无效，但是提供了一种通过使用频率选择性提供足够的带外补偿的滤波器。

公开(公告)号：US08588353B2

公开(公告)日：2013-11-19

申请号：US13078363

申请日：2011-04-01

申请人： Zigang Yang ,  Lars Jorgensen ,  Lei Ding

发明人： Zigang Yang ,  Lars Jorgensen ,  Lei Ding

IPC分类号： H04B1/10

CPC分类号： H04L27/368 ,  H03C2200/0016 ,  H03F1/3247 ,  H03F1/3294 ,  H03F3/189 ,  H03F3/24 ,  H03F2200/336 ,  H04L27/364

摘要： In conventional radio frequency (RF) systems, transmitters will usually convert baseband signals to RF so as to be transmitted. As part of the conversion process, the transmitters will perform digital predistortion (DPD), which uses feedback from a power amplifier. However, there are usually mismatches between the in-phase (I) and quadrature (Q) paths within with feedback loop. Traditional IQ correction filters were ineffective at providing adequate compensation for these mismatches, but here a filter is provided that provides adequate out-of-band compensation by use of frequency selectivity.

摘要翻译： 在常规射频（RF）系统中，发射机通常将基带信号转换成RF以便被发送。 作为转换过程的一部分，发射机将执行使用功率放大器反馈的数字预失真（DPD）。 然而，通过反馈回路中的同相（I）和正交（Q）路径之间通常存在不匹配。 传统的IQ校正滤波器在为这些不匹配提供足够的补偿方面无效，但是提供了一种通过使用频率选择性提供足够的带外补偿的滤波器。

公开(公告)号：US08311083B2

公开(公告)日：2012-11-13

申请号：US12648898

申请日：2009-12-29

申请人： Lei Ding ,  Zigang Yang ,  Fernando Mujica ,  Roland Sperlich

发明人： Lei Ding ,  Zigang Yang ,  Fernando Mujica ,  Roland Sperlich

IPC分类号： H04L5/16

CPC分类号： H04B1/40 ,  H03D3/009

摘要： Conventional transceivers do provide some compensation for in-phase/quadrature (I/Q) imbalance. However, these techniques do not separately compensate for I/Q imbalance for the transmitter and receiver sides of the transceiver. Here, a transceiver is provided that allows for compensation of I/Q imbalance in the transmitter and receiver irrespective of the other to allow for a more accurate transceiver.

摘要翻译： 传统的收发器确实为同相/正交（I / Q）不平衡提供了一些补偿。 然而，这些技术不会单独地补偿收发器的发射机和接收机侧的I / Q不平衡。 这里，提供了一种收发器，其允许补偿发射机和接收机中的I / Q不平衡，而不管另一个是允许更准确的收发机。

公开(公告)号：US08306149B2

公开(公告)日：2012-11-06

申请号：US12571435

申请日：2009-10-01

申请人： Fernando Alberto Mujica ,  Hardik Prakash Gandhi ,  Lei Ding ,  Milind Borkar ,  Zigang Yang ,  Roland Sperlich ,  Lars Morten Jorgensen ,  William L. Abbott

发明人： Fernando Alberto Mujica ,  Hardik Prakash Gandhi ,  Lei Ding ,  Milind Borkar ,  Zigang Yang ,  Roland Sperlich ,  Lars Morten Jorgensen ,  William L. Abbott

IPC分类号： H04L25/03 ,  H04L25/49

CPC分类号： H03F1/3258 ,  H03F1/3247 ,  H03F1/3294 ,  H03F3/195 ,  H03F3/24 ,  H03F2200/336 ,  H04L27/368

摘要： An apparatus is provided. In the apparatus, an input to index (I2I) module maps a complex input into a real signal. A real data tap delay line is coupled to the I2I module and includes N delay-elements. A complex data tap delay line is configured to receive the complex input and includes M delay elements. A set of K of non-linear function modules is also provided. Each non-linear function module from the set has at least one real input, at least one complex input, and at least one complex output. A configurable connectivity crossbar multiplexer couples K of the N real tap delay line elements to real inputs of the set non-linear functions and couples K of the M complex tap delay line elements to complex inputs of the set non-linear function modules.

摘要翻译： 提供了一种装置。 在该装置中，索引（I2I）模块的输入将复数输入映射到实际信号中。 实际数据抽头延迟线耦合到I2I模块并且包括N个延迟元件。 复数据抽头延迟线被配置为接收复合输入并且包括M个延迟元件。 还提供了一组K个非线性功能模块。 来自该组的每个非线性功能模块具有至少一个实际输入，至少一个复合输入和至少一个复合输出。 可配置连接交叉开关多路复用器将N个实际分接延迟线路元件的K耦合到所设置的非线性函数的实际输入端，并将M个复杂抽头延迟线路元件的K耦合到该组非线性功能模块的复合输入端。

公开(公告)号：US20110158297A1

公开(公告)日：2011-06-30

申请号：US12648898

申请日：2009-12-29

申请人： Lei Ding ,  Zigang Yang ,  Fernando Mujica ,  Roland Sperlich

发明人： Lei Ding ,  Zigang Yang ,  Fernando Mujica ,  Roland Sperlich

IPC分类号： H04B1/38

CPC分类号： H04B1/40 ,  H03D3/009

摘要： Conventional transceivers do provide some compensation for in-phase/quadrature (I/Q) imbalance. However, these techniques do not separately compensate for I/Q imbalance for the transmitter and receiver sides of the transceiver. Here, a transceiver is provided that allows for compensation of I/Q imbalance in the transmitter and receiver irrespective of the other to allow for a more accurate transceiver.

摘要翻译： 传统的收发器确实为同相/正交（I / Q）不平衡提供了一些补偿。 然而，这些技术不会单独地补偿收发器的发射机和接收机侧的I / Q不平衡。 这里，提供了一种收发器，其允许补偿发射机和接收机中的I / Q不平衡，而不管另一个是允许更准确的收发机。

公开(公告)号：US08750410B2

公开(公告)日：2014-06-10

申请号：US12888191

申请日：2010-09-22

申请人： Hardik P. Gandhi ,  Lei Ding ,  Zigang Yang

发明人： Hardik P. Gandhi ,  Lei Ding ,  Zigang Yang

IPC分类号： H04L25/49 ,  H04L27/36 ,  H04L27/00

CPC分类号： H04L5/06 ,  H03F1/3247 ,  H03F2200/336 ,  H04B1/62 ,  H04L27/368

摘要： Traditionally, for multi-band communication systems, independent signal chains for each of the different bands are employed. By using such an architecture, there are a large number of components, and there is substantial power consumption. Here, transmit processor is provided that enables transmission across multiple bands using few components (namely, fewer signal chains), while also provided for digital predistortion.

摘要翻译： 传统上，对于多频带通信系统，采用用于每个不同频带的独立信号链。 通过使用这样的架构，存在大量组件，并且存在大量的功耗。 这里，提供了能够使用少量组件（即较少信号链）在多个频带上进行传输的传输处理器，同时还提供用于数字预失真。

公开(公告)号：US20120069931A1

公开(公告)日：2012-03-22

申请号：US12888191

申请日：2010-09-22

申请人： Hardik P. Gandhi ,  Lei Ding ,  Zigang Yang

发明人： Hardik P. Gandhi ,  Lei Ding ,  Zigang Yang

IPC分类号： H04L25/49

CPC分类号： H04L5/06 ,  H03F1/3247 ,  H03F2200/336 ,  H04B1/62 ,  H04L27/368

摘要： Traditionally, for multi-band communication systems, independent signal chains for each of the different bands are employed. By using such an architecture, there are a large number of components, and there is substantial power consumption. Here, transmit processor is provided that enables transmission across multiple bands using few components (namely, fewer signal chains), while also provided for digital predistortion.

摘要翻译： 传统上，对于多频带通信系统，采用用于每个不同频带的独立信号链。 通过使用这样的架构，存在大量组件，并且存在大量的功耗。 这里，提供了能够使用少量组件（即较少信号链）在多个频带上进行传输的传输处理器，同时还提供用于数字预失真。

公开(公告)号：US20230394240A1

公开(公告)日：2023-12-07

申请号：US18326292

申请日：2023-05-31

申请人： Yongwei ZHANG ,  Bin Dong ,  Shanshan Jiang ,  Lei Ding ,  Jiashi Zhang

发明人： Yongwei ZHANG ,  Bin Dong ,  Shanshan Jiang ,  Lei Ding ,  Jiashi Zhang

IPC分类号： G06F40/295 ,  G06F40/40

CPC分类号： G06F40/295 ,  G06F40/40

摘要： A method and an apparatus for named entity recognition, and a non-transitory computer-readable recording medium are provided. In the method, text elements are traversed according to a text span to obtain candidate entity words. Then, a class to which the candidate entity word belongs is recognized. The recognizing of the class includes generating a prompt template corresponding to the candidate entity word, and concatenating the text to be recognized and the prompt template to obtain a concatenated text; generating vector representations of the text elements in the concatenated text; generating the vector representation of the candidate entity word according to the vector representations of the text elements of each candidate entity word in the concatenated text, and the vector representation of the text element of the mask word; and classifying the vector representation of the candidate entity word to obtain the class of the candidate entity word.

公开(公告)号：US11507854B2

公开(公告)日：2022-11-22

申请号：US16739311

申请日：2020-01-10

申请人： Liang Liang ,  Lei Ding ,  Bin Dong ,  Shanshan Jiang ,  Yixuan Tong

发明人： Liang Liang ,  Lei Ding ,  Bin Dong ,  Shanshan Jiang ,  Yixuan Tong

IPC分类号： G06N5/02 ,  G06K9/62 ,  G06F16/9032 ,  G06N20/10

摘要： A method and an apparatus for recognizing an intention, and a non-transitory computer-readable recording medium are provided. The method includes learning vectors of knowledge base elements in corpus samples, and converting the corpus samples into row vectors composed of the vectors of the knowledge base elements in a knowledge base; extracting feature vectors from respective pooling windows in the corpus samples by hierarchical pooling, determining weights positively correlated with similarities between texts within the respective pooling windows and the respective corpus samples, performing weighting on the extracted feature vectors to obtain feature vectors of the respective pooling windows, and obtaining feature vectors of the respective corpus samples composed of the feature vectors of the pooling windows; training a vector-based intention recognition classifier, based on the feature vectors of the corpus samples; and recognizing an intention in querying a corpus, using the trained intention recognition classifier.

公开(公告)号：US08469729B2

公开(公告)日：2013-06-25

申请号：US13257861

申请日：2009-12-14

申请人： Lei Ding

发明人： Lei Ding

IPC分类号： H01R13/44

CPC分类号： H01R35/02 ,  H01R13/72

摘要： The present disclosure provides a rotary wireless network card with double rotating shafts, which comprises a wireless network card body, an ultra-thin USB interface and a first rotating shaft, wherein at the top of the wireless network card body a opening is provided to accommodate the ultra-thin USB interface as withdrawn; the ultra-thin USB interface extends out of or returns back to the opening by rotating around the first rotating shaft; inside the wireless network card body a rotating shaft support is provided; a second rotating shaft in the opening is rotatably connected to the rotating shaft support; the second rotating shaft is accommodated outside the ultra-thin USB interface and connected to the ultra-thin USB interface; and when the second rotating shaft rotates in the opening, the ultra-thin USB interface and the first rotating shaft rotate in the opening along with the second rotating shaft. By designing a rotary head, the present disclosure frees a USB from the external connection with a cap or other objects that are easily lost or broken, and as the rotary shaft of the ultra-thin USB interface is smaller than common rotary shafts, the whole wireless network card is much shorter and narrower, causing no interference on the use of a neighboring interface.

摘要翻译： 本公开提供一种具有双旋转轴的旋转无线网卡，其包括无线网卡主体，超薄USB接口和第一旋转轴，其中在无线网卡主体的顶部提供开口以容纳 超薄USB接口退出; 超薄USB接口通过围绕第一旋转轴旋转而延伸出或返回到开口; 在无线网卡内部提供旋转轴支撑; 开口中的第二旋转轴可旋转地连接到旋转轴支撑件; 第二旋转轴容纳在超薄USB接口外部，并连接到超薄USB接口; 并且当第二旋转轴在开口中旋转时，超薄USB接口和第一旋转轴与第二旋转轴一起在开口中旋转。 通过设计旋转磁头，本公开通过一个容易丢失或断开的盖或其它物体从外部连接中释放USB，并且当超薄USB接口的旋转轴小于普通旋转轴时，整个 无线网卡的时间要短得多，不会对相邻接口的使用造成干扰。